The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 2005
Filed:
May. 16, 2002
Applicants:
Ulf Lindgren, Göteborg, SE;
Alberto Jimenez Feltström, Málaga, ES;
Thomas Jacobsson, Genarp, SE;
Inventors:
Assignee:
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G10H007/00 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus are provided for changing the pitch of a tabulated waveform in wavetable based synthesizers. Harmonics that normally would be aliased before a transposition process are removed by a discrete time low pass filter at the same time that the tabulated waveform is reconstruction and resampling.